Examlex
How is iron used in the bone marrow?
Zoetrope
A motion toy consisting of a bowl-like apparatus with slots for viewers to peer through.
Daguerreotype
An early photographic process developed by Louis Daguerre in the 1830s, producing a silver image on a polished copper plate.
Latham Loop
In early projection systems, a set of sprockets that looped the film stock to keep it from breaking as a result of its own inertia.
Vitascope
The Vitascope is an early film projector first demonstrated in 1895, which played an important role in the commercialization of cinema by allowing longer films to be shown to larger audiences.
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